View clinical trials related to Cough.
Filter by:The purpose of this study is to demonstrate the efficacy of azithromycin to produce a significant change in the cough-related health status, measured with the Dutch version of the Leicester Cough Questionnaire in patiënts with COPD gold classification 2-4 and chronic productive coughing.
Cough is a common, disruptive and at times disabling symptom which often prompts patients to seek medical attention. Determining the cause(s) of chronic cough can be challenging, and costly. Asthma and other airway disorders are among the most common causes of chronic cough; and cough can be the sole symptom of asthma. Little is known about why some patients with asthma primarily cough and do not develop the other symptoms of asthma such as shortness of breath or wheeze. Improved understanding of the reasons for these different manifestations may lead to new and more effective treatment strategies. We have notices differences in pressure measurements inside the chest in patients who mostly cough during induced bronchoconstriction, which might be part of the explanation for varying symptoms. This study will compare lung mechanical responses during methacholine and mannitol-induced induced airway narrowing between typical asthma, cough variant asthma (CVA) and an airway inflammatory disorder that is not asthma.The purpose of this research is to explore the pathophysiology and sensory-mechanics of cough in individuals with asthma, CVA and methacholine-induced cough but normal airway sensitivity using mannitol and high-dose methacholine bronchoprovocation testing.
The specific aim of this proposed pilot study is to compare two standardized processes (paper and electronic) to deliver a customized MedlinePlus health information prescription.
This study is designed to compare the effects of a bolus dose of remifentanil to a bolus dose of lidocaine given prior to the emergence of anesthesia: - on the incidence of perioperative coughing - on the time needed for the emergence of a desflurane-based anesthesia - on the incidence of sore throat after extubation. Our hypothesis is that the use of a remifentanil bolus dose given prior to emergence of a desflurane-based anesthesia will reduce the incidence of perioperative coughing from 70% to 35% compared to lidocaine.
Evaluation of Wire Electrodes to Activate the Expiratory Muscles to Restore Cough
Central sensitisation is an increase in the excitability of nerves within the central nervous system, which can lead to heightened sensitivity to certain stimuli. This process is involved in some chronic pain conditions e.g. migraines and non−cardiac chest pain. Recent work by our group suggests central sensitisation may be an important mechanism leading to chronic cough. The main questions in this study include: 1. Can the investigators induce temporary central sensitisation of the cough reflex in healthy volunteers for testing of new medications? 2. Can the investigators demonstrate exaggerated sensitisation in patients with chronic cough (indicating these patients are already centrally sensitised)? In animal studies, acid infusion into the gullet (oesophagus) is able to induce central sensitisation of the cough reflex. Acid infusion into the oesophagus has also been shown to induce central sensitisation in human healthy volunteers, increasing the sensitivity to pain on the front of the chest but this study did not test the the cough reflex. Using human participants, the investigators plan to test whether acid infusion into the oesophagus increases the sensitivity of the cough reflex in healthy volunteers and also patients complaining of chronic cough.
This is a Phase 3, open-label, randomized study of the antiviral activity, safety, and tolerability of intravenous Peramivir in hospitalized subjects with confirmed or suspected influenza infection.
The purpose of this study is to determine whether exchange of the double lumen tube before emergence with a laryngeal mask airway (Proseal) or a tracheal tube will reduce cough at emergence.
Chronic cough is defined by its persistence beyond 8 weeks. Many conditions can explain the existence of a bronchial inflammation. In the management of chronic cough, the search for bronchial hyperreactivity (HRB) is recommended. The treatment relies primarily on the prescription of inhaled corticosteroids. It has been shown recently that the existence of an HRB with Methacholine (bronchial provocation test used in routine) does predict the effectiveness of inhaled corticosteroid treatment in no more than 50% of cases. It is now possible to assess the bronchial inflammation by rapid, non-invasive and reproducible tests such that the fraction of exhaled nitric oxide (FeNO) and bronchial provocation test with mannitol. In a retrospective study, it was shown that an increased value of FeNO (cut-off > 35 ppb) predicts a positive response to treatment with a sensitivity of 90% and a specificity of 80%.
Cough is part of the defense mechanism to protect the lung from foreign particles and remove secretions from the airways. However, at times it becomes a bothersome, annoying symptom that interferes with the quality of life, sleep pattern and exercise tolerance of the patient. People with respiratory infection, asthmatic patients and CF patients suffer from a multitude of pathologies of airways and are often inflicted with chronic cough. Treatment of cough in these patients consists of many types of expectorants, cough suppressors, secretion modifiers, inhaled bronchodilators etc. In addition, chest physical therapy (PT) is often prescribed as part of the treatment regime. The primary objective of the study is to evaluate the efficacy and validity of novel cough counting device based on the WIM Technology.